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Issue 648412 link

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Issue metadata

Status: Verified
Owner:
Email to this user bounced
Closed: Jan 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in SkPerlinNoiseShader::PerlinNoiseShaderContext::calculateTurbulenceValueForPoint

Project Member Reported by ClusterFuzz, Sep 19 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6356054143401984

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  SkPerlinNoiseShader::PerlinNoiseShaderContext::calculateTurbulenceValueForPoint
  SkPerlinNoiseShader::PerlinNoiseShaderContext::shade
  SkPerlinNoiseShader::PerlinNoiseShaderContext::shadeSpan
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=400445:400830

Minimized Testcase (1.12 Kb): https://cluster-fuzz.appspot.com/download/AMIfv943kJpkDw9Qly2ya6voOzSpuokqkyRCGadaRYP_wxKj1lo570C3uy_aE5jndw_BVxg4A2SI-GdwEDivybDvDxfzAfnYGofwtnCWre2RP7DB7_2hPFZ4EqQiR_mCvdbSjnbb770WORH5g5r4Dwojbpfk6jXUcg?testcase_id=6356054143401984

Issue manually filed by: mmohammad

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Owner: reed@chromium.org
Status: Assigned (was: Untriaged)
reed @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

Labels: Pri-2
Project Member

Comment 3 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 4 by ClusterFuzz, Jan 17 2017

ClusterFuzz has detected this issue as fixed in range 443650:443891.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6356054143401984

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  SkPerlinNoiseShader::PerlinNoiseShaderContext::calculateTurbulenceValueForPoint
  SkPerlinNoiseShader::PerlinNoiseShaderContext::shade
  SkPerlinNoiseShader::PerlinNoiseShaderContext::shadeSpan
  
Sanitizer: undefined (UBSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=400445:400830
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=443650:443891

Minimized Testcase (1.12 Kb): https://cluster-fuzz.appspot.com/download/AMIfv943kJpkDw9Qly2ya6voOzSpuokqkyRCGadaRYP_wxKj1lo570C3uy_aE5jndw_BVxg4A2SI-GdwEDivybDvDxfzAfnYGofwtnCWre2RP7DB7_2hPFZ4EqQiR_mCvdbSjnbb770WORH5g5r4Dwojbpfk6jXUcg?testcase_id=6356054143401984

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 5 by ClusterFuzz, Jan 17 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6356054143401984 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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